Which departure time was most reliable for BUF to ATL?
Among qualifying BUF-to-ATL departure window results, Late morning had the highest on-time rate: 83.3% of 42 flights. Evening was lowest at 77.5% across 409 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 365 | 83.3% | 6.8% | 2.5% |
| Late morning | 42 | 83.3% | 14.3% | 0.0% |
| Afternoon | 691 | 78.6% | 13.5% | 1.9% |
| Evening | 409 | 77.5% | 13.7% | 2.4% |
Which weekday was most reliable for BUF to ATL?
Among qualifying BUF-to-ATL weekday results, Wednesday had the highest on-time rate: 90.1% of 191 flights. Monday was lowest at 70.9% across 230 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 230 | 70.9% | 15.7% | 3.9% |
| Tuesday | 209 | 82.3% | 13.4% | 0.5% |
| Wednesday | 191 | 90.1% | 5.2% | 0.0% |
| Thursday | 230 | 83.5% | 8.7% | 0.9% |
| Friday | 230 | 81.3% | 10.0% | 3.0% |
| Saturday | 182 | 79.7% | 11.5% | 3.3% |
| Sunday | 235 | 71.5% | 17.9% | 3.0% |
Which airline was most reliable for BUF to ATL?
Among qualifying BUF-to-ATL airline results, Delta Air Lines had the highest on-time rate: 82.2% of 1,249 flights. Frontier Airlines was lowest at 66.5% across 257 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,249 | 82.2% | 9.4% | 2.0% |
| Frontier Airlines | 257 | 66.5% | 24.1% | 2.7% |
| Southwest Airlines | 1 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for BUF to ATL?
Among qualifying BUF-to-ATL month results, September 2025 had the highest on-time rate: 96.0% of 124 flights. January 2026 was lowest at 66.3% across 98 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 134 | 76.9% | 11.9% | 1.5% |
| August 2025 | 136 | 73.5% | 16.9% | 2.9% |
| September 2025 | 124 | 96.0% | 1.6% | 0.0% |
| October 2025 | 142 | 88.0% | 5.6% | 0.0% |
| November 2025 | 107 | 79.4% | 13.1% | 2.8% |
| December 2025 | 107 | 68.2% | 15.0% | 6.5% |
| January 2026 | 98 | 66.3% | 15.3% | 8.2% |
| February 2026 | 97 | 79.4% | 12.4% | 0.0% |
| March 2026 | 128 | 82.0% | 10.2% | 1.6% |
| April 2026 | 144 | 85.4% | 10.4% | 0.7% |
| May 2026 | 149 | 74.5% | 16.1% | 1.3% |
| June 2026 | 141 | 80.1% | 15.6% | 2.1% |
What drove BUF to ATL delay minutes?
Late aircraft was the largest recorded BUF-to-ATL delay category, accounting for 53.8% of 18,108 BTS-attributed delay minutes during July 2025–June 2026.
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